Steam-boiler furnace.



0. D. ORVS,

STEAM Bom?. Emma. APPLICATION FLED APR. 16, 19M. Qg/Qg, Eatentm July i3,15209.

2 EEBETS-SEEET 1.

" My/Q O. D. DEVIS.

STEAM BGH-1ER FBNGE.

wPLmATloN FILED APR 1G. H107 Patented July 13, 1909.

2 SHEETS-'SHEET 2 lllillflltll) STATES PflrTllli l Olilllllll.

ORLAND D. ORVIS, Ol" NEW YORK, N. Y., ASSIGNOR 'l'O OltVlb lltONOMYFURNACE ('O., Ol? NEW YORK, N. Y., A CORPORATION Ol" NEW YORK.

STEAM-BOILER FURNACE.

Specification of Letters Patent.

Patented July 13, 1909.

Application filed April 16, 1907. Serial No. 368,564.

To all 10710772. it rmay concern Be it known that l, OinnNn D. Oiwis, acitizen ot the United btates, residing in the city of New `York, boroughof Manhattan, and State of New York, have invented a eertain new anduseful StcanbBoilcr Furnace, of

which the following is a specification.

This invention is a steam boiler furnace, and it appertains moreespecially to that type of water tube boilers wherein inclined watertubes are cniployed in connection with ineans operating to direct thesinoke, gases and other products of combustion in :i circuitous pathback and forth between and around thc aforesaid inclined Water tubes.

ln one type of furnace constructed in aecordance with this invention, aplurality ol" niantlcs `or arches lic over the. `tirate and within thegrate-clnnnbor, said arches being` spaced relatively to one another' toproduce an intermediate throat for the passage oll the. products ot'combustion, and means whereby a blast, or a plurality of blasts, olsteam and air, either singly or jointly, are projected across theaforesaid throat, whereby said blast or blasts are thrown into theascending,` current ot the products oi' combustion l'or the impose ofdisintegrating the smoke, increasing the. combustionot the gases, andaugmenting' the drat't and the heat.

Vlt is preferred to employ blast devices operatingr to `direct currentsin intersecting paths and across thc aforesaid throat, and, further, tocombine. steam and air prior to disehargjinpl the blast or blasts intothe products ol2 coinlnistion. llurtherinore, it is preferred to providemeans for scouring a circulation ot water from the boiler through thegrate-chamber, for the two-told purpose of generating steani and forreduennfy the temperature of certain nietal parts enip oyed in the gratechamber for supporting;- the mantles or arches therein.

In the. accompanying drawings, l have illustrated one practicalenibodiinent of the invention, but t ie Construction shown therein is tobe understood as illustrativo only, and

not as deiining the limits ol the invention.

Figure l is a vertical section showing the present invention inconnection with a Waterl tube boiler of that typo wherein Water tubesare employed in an inclined position relative to the (irate-chamber andthe escape ilue or fines. `ig. 2 isan enlarged vertical section throughthe grate-chamber ot the water tubo boiler shown in Fig. l, the dottedlines illpstrating' the direction ol" thel blasts from a plurality ofblast pipes, the plane ol the scetion being,r indicated by jthe dottedline 2-*2 ol Fig. Fig. 3 taken in the irregular plane indicated bydotted line 3 3 ot Fig. 2. Fig. 4 is a vertical cross section on theline llt-4 ot Fig. 2.

The water tube boiler shown in Figs. 1 to 4 inclusive, consists ot agrate-ehamber, A,the inclined water tribes, B, and the steam dome, C.lin the chamber, A, is a grate, (1 sup ported at one end by a bridgewall, D. Ex,- tendine upwardly rfrom this bridge wall is a partition,ll, which directs thd products of combustion upwardly through one.portion of the water tubes, B, over the rrate-elnimber. llxtendinfgdownwardly l'roni the boiler, (l, is a baille, l"`, and 'from thisbaille. extends another partition, ll, whereb the products oi combustionare caused to ,pass downwardly between the partitions, lll ll", anldthence npwardly in rear ol` the partitions, l', to the outlet, e, whichcommunicates with a stack or up take.

The generator thus tar described is oi tho l'aniiliar typo known in thearl. as a water tube boiler, and the several parts may be constructedand arranged in any usual or preierred way.

lVithin the grate-chamber, A, at a suitable height above the grate, o,therein, are inantlcs or arches, tl, (l. Said manlles or arches are su)ported partly by water circulating pipes, l, ll, and by brick work, l,l', in which brick work there. arey embedded the blast pipes, J, J.

rl`he mantle, (l, is supported at its front end on the wall, o, ot thoboiler setting, while the inner end ot said nianlle shown as resting'upon the blast pipe, J, and the brick work, l. The other mantle. (l, issupported at its rear edge on the bridge wall, l), while the l'ront edgeoll said member rests on the. blast pipo, J, so as to be supported bythe brick work, l/. The. two niantlcs, G, (l, are 'spaced at theiradjacent edges so as to produce a throat, li, between them, throughwhich throat the smoke, gases and other iroducts of combustion areadapted to pass in order to escape trom tbe grate-chainber, A, into thecirculating ilues around the inclined water tubes, B. lt is preferred toarrange the mantlcs in approximately horizontal positions and so thatthey extend is a horizontal seotion nozzles, j, j

l may employ from side to side of the furnace. Flach mantle may becomposed ot' any suitable or appropriate material and installed withinthe grate-chamber in a suitable way, but in one ractical form of theinvention each mantle 1s composed of blocks or slabs ol fire roofmaterial, such as lire clay, said blocks eing molded in a suitable shapeand size, and,

baked or otherwise treated in a way to render it indestructible to theaction oi heat.

a single water circulating ipe in connection with each brick work, l,l', but as shown in Figs. l and 2, it is preferred to employ said pipes,H, H', in pairs.J Said pipes, H, H', extend horizontally across thegratachamber so that the end portions of the pipes are embedded in theside walls, a2, of the furnace, sep Fig. 4. v The end portions of thepipes, H, l, Well the end portions of the pipes, H', H', are coupledorunited by headers, a, h', which are, also, embedded in the side walls,each header being )rovided with a suitable removable closure, 1'. Thetwo pairs of ipes, il, ll', are spaced at the respective si es oi thethroat, K, and as said pipes are supported directly by the side walls ofthe furnace, they Jfurnish a convenient and secure means for supportingthe brick work, l, l'. lt is evident that the brick work should becomposed of lire'prooll material, and that said brick work may be`easily, quickly and accurately laid on the pairs of water circulatingpipes, l-l, ll'. During the installation oi the brick work, the olastpipes, tl, J', are placed in position so as to be embedded in the brickwork or incased thereby. The' tiles composing the inantles or arches, G,G', are adapted to be laid'or placed in position easily, quickly andaccurately, ano the entire apparatus may be installed without theemployment ol skilled labor. v. The water pipes, il, ll', may beconnected in any suitableor approved manner with the inclined watertubes, B, or with other parts o1" .tlie water tube boiler. ln Figs. 3and 4l have shown circulating pipes, L, L', connected to the respectiveheaders, h, h', of the pipes, H, ll', and these circulating pipes, L,L', are adapted to be connected with the inclined water tubes, or withany other part of the boiler, for the purpose ol' securing the desiredcirculation of water through the pipes, lil, l-l', whereby said pipesare protected against the excessive heat of the urnace.

lt is preicrredv to employ two blast pipes, il, J', and to provide saidpipes with series of respectively, as shown in Figs. and 3. The rearside of the brick work, l', orn that side Vnext/to the throat, K, isprovided with aserios ol" opeiiings, t, which are inclined upwardly, andinto these openings extend thc nozzles, j, of the blast pipe, il,whereby the nozzles are adapted to direct a `the nozzles of the pipe,

, tions one to ployment or 4directing a blast or blasts across sewersblast rearwardly and across the throat, K, said blast being in u wardlyinclined paths. The front surface cip the brick work, l', or thatsurface next to the throat, K, is rovided with a series of openings, i',into w ich extend the nozzles, j', of the blast4 pipe, J', and thesenozzles are inclined slightly in an upward and forward direction for thepurpose of directing a blast across the throat, K, the direction of theblast from the nozzles of the pipe, J', being opposite to the blast fromscription it will be apparent that the two blast pipes, J, J', areprovided with` nozzles arranged to direct blasts in opposite directheother, said blasts from the pipes intersecting one with the other.Furthermore, the nozzles, y', ot' the pi e, J, are not in the saineplane 'longitudineJ ly of the furnace chamber-as the nozzle, j', of theother blast pipe, J', but as will be noted by reference to Fig.`3, thenozzles of one blast pi e are in alternate relation to, or out ofalinenient with, the nozzles of the other blast pipe, whereby thenozzles ot' the two blast ipes are stag ered. Furthermore, it isreferred to emp oy nozzles which are of attened construction, in orderthat the blast issuing from the flattened or elongated nozzles mayspread or diverge horizontally. The nozzles of the two blast pipesemployed in my invention are arranged to direct the jets or 4streams ofsteam and air in such a way across the throat, l, as to break up ordisintegrate the cloud ol' smoke which arises from the bed of fuelresting on the grate, c, and the result or this injection oi the blastis to intiniately combine steam and air with the products of combustionfor the purpose of increasing the combustion oi the smoke and gases",whereby the intensity of heat is augmented b' the admixture ot oxygenwith the gases an 'the thorough combustion 'of said gases is assured.

B reference to Fig. 2 of the drawings, it will oe observed that thewater pipes, H, H', and the brick work, l, l', are in lanes below theends ofthe mantles, G, G', w ich are supported by the front wall, o',and the bridge wall, D, respectively, and furthermore, that the adjacentends of the mantles, G, Gr', arev J. From this de` iro below theotherends of said mantles, whereby the mantles may be said toconvergedownwardly toward each other, The emthe mantles over the grate, and

s aced to produce the throat for the escapeof tue products ofcombustion, is an important feature of my invention, and the `employmentoi one or a plurality of blast pipes for said throat `is anotherimportant feature. ln the prac- Atical operation ot the Afurnace, thesmoke and arising from the bed ol' fuel on .the

grate circulatea in upward direction and strike against the nantles, butthe blasts CTB across the throat draw the smoli, and gases downwardlyand beneath the water pipes. ll, H, and thence upwardly through thethroat, whereby the products ofv combustion are whipped7 orcaused tomove with increased velocity around the inner edges of the-mani what lclaim as new and desire to secure by Lettrs'Patent is:-

1. In a boiler iturnace ol' the class described, a grate chamber, apinrahtv of downwardly converging mantlcs spaced in' said chamber toproduce a throat fo",pas

sage therethrough of products of combus-` tion, and .meansfor injectingupwardly converging blasts ot steam and air across th'e aforesaidthroat.

2. In a boilcrr furnace, a grate chamber, a plurality of inantlcsseparate from the walls of said grate chamber and extending toward eachother from oppo.,' ,e walls of said chamber, said mantles beingdisconnected at their adjacent endsl and forming an intermediateopeningthrough which flow the products of combustion from said chamber,and blast devices arranged to Iproject blasts on -up- Wardly converginglines and across said in tei-mediate spacc 3. .ln a boiler furnace, igrate chamber, two Inanttes extending respect ivelj' from opposite wallsot' said chamber, lhc lower surface of each mantle being curved orarched lengtlnvise ot' said chamber and thc said arched surfaces of thetwo niantlcs prcscnting iinperforate baille surfaces for the imspingeinent of products of combustion, said niantles being substanliallyleijnal in area and being, also, separated at their inner adjacent ends,whereby there is produced an intermediate throat for the escape ol'prod-- 'nets of combustion, and blast devices inA eased in said mantlesat the inner separated ends tlwreot", said blast devices having meansfor directing blasts in upwardl)` conf verging paths and across saidthroat.

4. ln a boiler furnace, a ,f jiatc chamber, a. plurality of mantles eachcomposed of a row of tiles or sections which are curved lengthwise ofthegrate chamber, one ot' said inantiles extending bacliwardlv from thefront 'all of the grate chamber, andthe other mantle extending'forwardly from the back wall ,of the chan'iber, said mantles beingseparated at their adjacent ends and producing subslantialtv centrallyof the chainbcr a throat for the escape of the products of coinlnistirm,said tiles or sections producing curved imperforate baille. surfacesabove a grate in said chamber, and blast devicesat the adjacent ends of`the respective inantles for injecting blasts across said throat betweensaid niantlcs.

.ln a boiler 'furnace of the class dev scribed, a grate chamber, aplnralit)v of downwardlyv converging mantle.s spaced in said chamber toproduce a throat for the passage between them of products ofconibustion, and a plurality of blast pipes for directing steam and airin upwardly converging paths across said throat.

(i. ln a boiler furnace, a grate chamber,

' discomicctcd niant les extem'ling toward each other and trom oppositewalls of said chamber, said mantles being separated at their adjacentends, thereby forming an opening through which tlow the products ofcoinbnstion, and horizontal blast pipes incased in said mantles, ai theadjacent edges thereof, for directing blasts across said space whichintcrvencs said edges of the .mantles.

7. ln a boiler furnace of the class described, a grate chamber, twomantles extending inwardly from opposite walls of said chamber andseparated at their adjacent edges to produce a throat for the passage ofproducts of combustion, said inantles presenting imperforate baillesurfaces of substantially equal area, and said surfaces being curvedlengthwise of the grate chamber, a blast pipe at the inner edge of cachmantle, and nozzles projecting-from said blast pipes,

the nomles of one pipe being staggered relatively to the nova/.lcs ofthe other pipe, and

said nozzles arranged to injectsteam and air on upwardly converginglines and across the aforesaid throat between they niantlcs.

8. ln a boiler furnace, a chamber` separate mantles extending towardcach other from opposite walls of said chamber, the adjacent edges ofsaid mantlcs being separated and prmlucing an intervening openinglthrough which flow the products ofcombuslion, and blast pipes pbsitionedsubstantiall)v at the separated edges of the mantlcs, one. ot' saidpipes being adapted to direct a bjast in an upward and forwarddirection, and the other pipe operating to direct a blast in an upwardand rearward direction, whereby said blasts are directed in intersectingpaths and across thespace intervening said inantles.

S). ln a boiler furnace., a chamber, two arched mantlcs within saidchamber and separate from the walls thereof, one of said mantlesextending from the rear wall of the chamber, and the other mantelextending from the ,f'ront wall of said chamber, said nnnitles beingseparated at their adjacent ends and producing an interwning openingblast pipes parallel to through which products of combustion are free toflow in an upward direction, and blast pipes on the respectivo mantle-s,one ol' said pipes having nozzles ,tor directing blast in s iorwarddirection and' across intervening space, and the other pipe havingnoni-iles operating to direct a blast in a rearward di rection and.across said intervening space.

l0. ln a boiler furnace, a chamber, two arched and disconnected niantlitfithin said chamber, one oi said mantles extending iorwardly from aroar wall of the chamber and the other extending rearwardly from thefront wall or the chamber, said niantles g s aced to produce an openingintervening their adjacent ends, whereby products of combustion may flowin upward direction and substantially centrally of said chamber, blastpipes on pective man-les, and nozzles on the pipes, the nozzles oi one*i ipe operating to direct e blast in a forward and upward direction,and the nozzles ci the other pipe directing` a blast in a and upwarddirection,

11. in a boiler furnace of the class'dtscribed, a grate chamber,horizontal water circulatinff pipes extending transversely across saichamber, two disconnected mantles each supported at one edge by one cisaid pipes, mantels extending opposite disaro rections from said ipcs.and toward opposite walls of said cham er, and said presentingimperforate baiile surfaces ani-ch are curved lengthwise of the grateci.' amber, and rcsaid water pipes, said blast pipes being changed todirect a blast from the respective mantics and across a throat betweensaid niantles,

12. in a boiler furnace ol' the class i sc ined, a Grate chamber, twogroups of ho zontal water circulating pipesV extcndi across saidchamber, suitable tiles on say I' pipes, two mantles .spaced in saidchain* oer to produce between their adjacent ends a throat for theproducts of combustion, each inantlc being composed of arched tileswhich are sup ported at the inner ends by the aforesaid tiles on 'oneoi' said groups ol' ,vaterlpipes, and blast pipesparallel to the waterpipes and adapted to direct across said throat,

13. in a boiler furnace scribed, a grato chamber,

zontal waA groups ol' horiclhmbcr, Llilworlf; on cach group ol' saidpipes, arched inantlos supported partly by the briclc'worl andextending; outwnrdiv therefrom to opposite walls ci' said chamber, saidinantios beider .separated at their -i ccnt ends and producing a throatpassage oi' the produels olx combustion, ,2 i blast pipes inf-ascii inthe bricliofloi the inanilcs `iid pipes having no dir/actin blastsacross the throat betr/ecn ,said ina; tles.

bias-ts ol.l steam and ci tho class doi pipes extending across saidvcamere 14. ln a boiler furnace of the class described, a grate-chamber,arched Ina-ntles over a grate in said chamber and producing an.intermediate throat ior the passage of products of combustion, saidmantles converging downwardly toward each other and separated by theaforesaid throat, and blast pipes at the adjacent edges of the mantlesand provided with nozzels for directingl blasts across the aforesaidthroat.

i5. In a boiler furnace of the class def scribed, a grate chamber,arched downwardly converging inantles separated at their adjacent edgesand producing an intermediate throat lor the passage of products ofcornbustion, and blast pipes at the adjacent edges oi' said inantles andadapted to'direct blasts oi steam and air in upwardly converging pathssind across the aforesaid throat.

1b. in a boiler furnace of the class described, a grate chamber, abridge-wall, tWO arched inantles extending respectively froin the frontci the grate chamber and :from the bridge-wall, said mantles convergingdowlb wardly and being separated toviproduce a throat between theiradjacent edges and each mantle presenting an imperforate arched battlesurface to the products of combustion, and means for directing blasts ofsteam and air in upwardly converging paths and across the aforesaidthroat.

i7'. in a boiler furnace, a grate chamber, a plurality of horizontalwater tubes extending across said grate chamber, a row of tiles spanningthe space between the pipes and supported directly thereby, a blast piperest ing on the aforesaid tiles and located in a vertical planeintermediate the aforesaid water tubos, and other tiles substantiallyincasing the blast pipe and su ported by the iirst named row of tilesand t e Water tubes, :said blast pipe having nozzles arranged todischarge blasts externally to the tiles.

i8. ln a boiler furnace, a grate chamber, a group of water-circulatingpipes therein, tiles resting on said pipes, a blast pipe located in aplane between the water pipes of said group and resting on said tiles,and other tiles in casing said blast pipe and supported by the 'firstnamed tiles and said group of pipes.

lil. ln a boiler iurna-f'c, a grratcchainbcr, a cup ci'rfater-circulating pipes therein, tiles the space between said pipes, alocated in plane between thc dd group and resting onlssid tiles, v tilescooplnatingr` with the iirst in incasing the blast pipe, all of fsupported by the group of tung; pipes, wh pipes arc dithc gral ocharnbiast p ninos s, f: u

and otnr i n, boiler fornace, a grato chamber, a watercircubiting pipestherein, tiles Y id pipes, a blast pipe resting on l tilcr resting atone ond or Y the aforesaid tiles and pnitinlly inoleesing the blastpipe, said last inenriened tiles e::

tending beyond the group ol pipes and. pregroup oll Water-circulatingpipes therein, tiles resting on said pipes, a .blnSt pipe resting on thetiles, and other tiles Resting nt one end on the eferesniel tiles andpartiellv ineneing the blast pipe, seid ,last mentioned tiles beingsmelled o1' Curved beyond thel group of pipes and presentinginipell'omte bnlile surfaces which are curved lengtlnvise ol' the grotechamber.

1n a boiler nfnaee, e gute chamber, n plninlity of nmntles ositiened insind eli-1nber and swelled with respect tev tli inne ol' n gratetir-rein, said mantles formingD 'f ing througl'i which the products ofcombustion nre adapted to flow in an upward direction, und a plumlityel'blast devices opereting Le dii-eet blnsts in opposite directions to euchothe end aeross the opening between Suid nxentles, said blasts being,-directed, also, on upwardly eonverging lines, whereby the product s ol'einnbnstion rising from below the nmntels nre lrewn forcibly around theinner adjacent edges thereof and the flow of seid pioduets ol combustionis accelerated tln'ongll the opening between said inuntles. ln testimonywhex'eof l have signed my neme to tliib` specification in the presenceof two subscribing witnesses.

` ORLAND D. URVIS.

W itnesses:

JAS. lit Gnnwm, Hfl. nn'n'mnn.

